using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace SetEventLog
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            if (System.Diagnostics.EventLog.SourceExists("ZhyScoure"))      //判断是否存在事件源
            {
                System.Diagnostics.EventLog.SourceExists("ZhyScoure");      //删除事件源注册
            }
            System.Diagnostics.EventLog.CreateEventSource("ZhyScoure", "NewLog1");   //创建日志信息
            eventLog1.Log = "NewLog1";      //设置日志名称
            eventLog1.Source = "ZhyScoure";     //事件源名称
            eventLog1.MachineName = ".";
        }

        private void btnWriteLog_Click(object sender, EventArgs e)
        {
            if (System.Diagnostics.EventLog.Exists("NewLog1"))
            {
                if (textBox1.Text != "")
                {
                    eventLog1.WriteEntry(textBox1.Text.ToString());
                    MessageBox.Show("日志写入成功");
                    textBox1.Text = "";
                }
                else
                {
                    MessageBox.Show("日志内容不能为空");
                }
            }
            else
            {
                MessageBox.Show("日志不存在");
            }
        }
    }
}